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Railway Design

Demand for rail travel has significantly increased in recent years. As a result, our clients require a safe and efficient railway that meets the needs of their customers in terms of frequent services and convenient routes. On top of that, electrified railways provides low carbon emissions.

From development of new rail schemes to upgrade and electrification of existing railways SDEA_Engineering Solutions helps our clients through the entire project lifecycle delivering integrated solutions that improve experience of all passengers and freight services.

The Overhead Line Equipment (OLE) design relies on the supply of electrical power to the vehicle units. Power is supplied through the catenary via interaction with the pantograph.

The main mission of an OLE designer is to ensure compatibility and correct performance of these two main parts to achieve project requirements. A designer must be able not to just provide solutions for open routes, but for specific points of the infrastructure that need high accuracy and detail to comply with all safety and design standards.

Our team has worked with several basic design ranges: NR Series 1, NR Series 2, NR GEFF, OLEMI, ADIF CA-160, ADIF CA-220 and others including conductor beam and tram wire. These systems span between 25kV AC supply to 750V DC and maximum operating speeds of 225km/h.

Designs are developed from onsite survey data as, for example, Point Cloud technology, which provides a virtual accurate perspective of the site. Please refer to our BIM modelling section to find out more about this technology.

The areas of services that we work with are:

Loading and Structural Assessments


RAILWAY The end of the construction projects requires the production of As-Built drawings. In their production, construction records are checked against detailed design to evaluate

Tunnel Rail

Tunnel Assessment and Solutions

RAILWAY It is common to find tunnels on railway lines on land with certain orography or on metro lines that are mostly underground. The space


Overbridge Assessment and Solutions

RAILWAY It is common to find, in existing railway lines, overbridges crossing the tracks. If the route was not planned for electrification, normally those bridges

Detail Designs for Construction

Detail Design For Construction Projects

RAILWAY In the construction design phase, all aspects of the system are calculated and designed for a correct performance of operations. The project delivery includes

Engineer doing a preliminary design

Preliminary Design

RAILWAY It is important the participation of qualified personnel in the preliminary design projects that evaluate the problems and propose different alternatives to find the